众所周知，DOS和Window98系统下能对硬件端口直接操作（使用Port函数），但Window2000和WindowXP系统屏蔽了此功能，该控件能在Win2k,WinXP操作系统下直接操作硬件端口，需要WinDriver支持。-As we all know, DOS and Windows98 system hardware will be able to direct port operations (the use of Port functions) But Window2000 WindowXP system and shielding of this function, which can control the Win2k. WinXP operating system under the direct operation of hardware ports, WinDriver need support.